This Stage-2 cold air intake system resulted in 11 max horsepower, 15 lbs. x ft. torque and out-flowed the factory intake by 38% on the 2012-2014 BMW 328i F30 N20 Turbo. This system includes a durable 18-gauge, powder-coated heat shield and features a washable | reusable conical Pro DRY S air filter for maximum flow. The Pro DRY S air filter uses three layers of progressively finer mesh synthetic "oil-free" media to provide maximum airflow for the best performance results. A 3 inch one-piece mandrel-bent wrinkle-black powder coated intake tube and bracket, maximizes air velocity providing maximum performance and throttle response. This is a direct bolt-on kit that requires no cutting or drilling on OEM parts. The air filter uses a unique (patent pending) flange retention design that requires no hardware to mount the filter to the heat shield to provide a quick hassle-free installation with minimal hardware. This dyno tested intake tube is designed to maximize air velocity and uses the latest engineering tools for maximum performance. The large intake tube is mandrel-bent to smoothly direct the increased airflow into the engine. This intake utilizes a huge, 7" conical Pro DRY S Filter. The filter features 3-layers of progressively finer mesh synthetic "oil-free" media to provide maximum flow with excellent filtration. The progressive layering of media allows the filter to flow at high levels, even when dirty. The Pro DRY S non-oiled synthetic air filter requires no oils for cleaning for maximum convenience. The air filter is housed in a one-piece, black powder-coated 18-gauge heat shield that keeps warm engine air out for maximum performance. The one-piece heat shield snaps onto the lower half of the factory air box to provide a quick and easy installation utilizing factory mounting locations.

Advanced Flow Engineering, Inc. (aFe) produces high flow, high
performance air filters & intake systems for the automotive
industry. Founded in April, 1999, aFe was created to address an
obvious need in the automotive aftermarket industry: a lack of
choice for a high performance aftermarket air filter. We are a team
of engineers, machinists, production and sales people who believe
in the product we design. We each have years of experience in our
respective positions and together work to ensure that we have the
best product on the market. Our purpose was not just to be another
vendor that offers air filters, we chose to pay attention to those
finer details that set an aFe filter apart from the
competition.